Brush



FIG. 1 is a perspective view;

FIG. 2 is a view from above;

FIG. 3 is a side view;

FIG. 4 is a view from below;

FIG. 5 is a view of the other side;

FIG. 6 is a rear end view; and,

FIG. 7 is a front end view.

The part of the design shown in phantom lines depicts an environment of the design but not form part of the design. 

The ornamental design for a brush, as shown and described. 